Otter fur is spiky, so it traps insulating air molecules.

獭毛尖锐，能够困住保温空气分子。

Sea otter fur, for example, is about a thousand times denser than human hair.

如，獭皮，獭皮比人类的毛发要浓密大约一千倍。

But the secret to its insulation power is in its texture.

獭毛保温的秘密在于毛的纹理。

The sea otters are coming in with a variety of injuries, illness, orphaned pups.

来的獭要么受了各种各样的伤，要么患了各种疾病，又或是被遗弃的幼崽。

Sea otters are one of the few marine mammals to use tools.

獭是少数使用工具的洋哺乳动物之一。

Perfect timing for Sea Otter Awareness Week.

獭宣传周的最佳时刻！

Rescued when she was only a week old, this sea otter had a huge following.

这只獭被救起时只有一周大，它的粉丝很多。

Hearing is also tough for otters, in the noisy underwater environment.

由于水下环境非常嘈，獭的听觉也会受限。

Some marine mammals spend lots of time on land like sea otters and polar bears.

一些洋哺乳动物会有很多时间在陆地上，如獭和北极熊。

A sea otter in the style of girl with the pearl earring by Johannes Vermeer.

一只戴着约翰尼斯·弗米耳环的女孩风格的獭。

For the record, humans can feel the difference too, but it takes us 30 times longer.

其实，人类也可以感觉到这种差异，只不过我们所需的时间是獭的30倍。

Sea otters are pretty petite compared to other marine mammals.

与其它洋哺乳动物相比，獭的体型相当娇小。

And don’t miss the rescued sea otters chowing their way back to good health on fresh clams.

千万别错过那些大口咀嚼着新鲜贝类而重拾健康的获救獭。

The reading and the lecture are both about theories of the rapid decline in sea otter populations.

阅读章和演讲都是关于獭数量急剧下降的理论的。

When it comes to more practical matters like using tools, the sea otter is front and center.

当涉及到更实际的问题，比如使用工具时，獭是个中翘楚。

It's the sea otter which can grow to a weight of 90 pounds that's the largest weasel on earth.

答案是獭，它能长到90磅重，是地球上最大的鼬类动物。

Capuchins, chimpanzees and sea otters, among others, are known to use rocks to crack open, respectively, nuts and shellfish.

已知卷尾猴、大猩猩和獭分别用岩石来敲开坚果和贝类。

They blindfolded an otter named Selka, then presented her with plastic plates engraved with tiny grooves, like corduroy.

他们将一只名为“塞卡”的獭的眼睛蒙上，然后让她触摸刻有小凹槽的塑料盘子，那有点像灯芯绒。

Otters hold paws, and it's called rafting.

獭在水中牵着爪子，这被称为“筏游”。

This finding indicates that pollution is the reason why sea otters are in rapid decline.

这一发现表明，污染是獭迅速减少的原因。